#123681#123681

#123681 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.8% C 0.133 H 262.5°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#123681
RGB	rgb(18, 54, 129)
HSL	hsl(221, 76%, 29%)
HSV	hsv(221, 86%, 51%)
CMYK	cmyk(86%, 58.1%, 0%, 49.4%)
CIE-LAB	lab(24.80, 17.88, -45.78)
CIE-LCH	lch(24.80, 49.15, 291.33°)
OKLab	oklab(35.8% -0.0174 -0.1323)
OKLCH	oklch(35.8% 0.133 262.5)
XYZ	xyz(5.5296, 4.3512, 21.3131)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123681 #815D12

analogous

#126E81 #123681 #261281

triadic

#123681 #811236 #368112

tetradic

#123681 #81126E #815D12 #128126

square

#123681 #81126E #815D12 #128126

split-complementary

#123681 #812612 #6E8112

monochromatic

#040B1B #0B204B #123681 #194CB7 #2C67E2

Accessibility & contrast

On white

11.23

#123681 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#123681 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123681

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123681	#FFFFFF	#000000	##FFFFFF
##123681	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004084

Deuteranopia (green-blind)

#003680

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123681;
/* rgb */ color: rgb(18, 54, 129);
/* oklch */ color: oklch(35.8% 0.133 262.5);

Tailwind

colors: {
  custom: {
    50: '#666ca6',
    500: '#123681',
    950: '#000000',
  },
}

SCSS

$custom: #123681;
$custom-light: #666ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#123681",
  "rgb": {
    "r": 18,
    "g": 54,
    "b": 129
  },
  "hsl": {
    "h": 220.541,
    "s": 75.51,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35804,
    "c": 0.1334,
    "h": 262.5
  },
  "luminance": 0.04352
}

Semantic roles & 50–950 ramp

primary

#123681

secondary

#B78E38

accent

#B536F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #123681

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →